Padang Ekspres net-Finance Minister Sri Mulyani Indrawati kept silent on Thursday about her appointment as a World Bank managing director, while President Susilo Bambang Yudhoyono has yet to name her replacement despite widespread rumors of possible candidates.

Mulyani refused to explain the reason behind her decision to accept the prestigious position at the World Bank, based in Washington DC, despite market jitters amid her surprising appointment.

"Later ... I will make a statement," she said when asked by reporters about her appointment.

Mulyani will serve the World Bank starting June 1 overseeing 74 countries in three regions -- Latin America and the Caribbean; the Middle East and North Africa; and East Asia and the Pacific -- in a second-highest position, just under President Robert Zoellick.

On Thursday morning Mulyani launched a top service for 20 treasury district offices in Jl. Otto Iskandardinata in East Jakarta. At the evening she inaugurated echelon II officials of the state wealth office.

In both occasions she talked how the ongoing bureaucracy reform at the Finance Ministry should be continued despite her departure.

"Reform is not a minister's program but institution's. It will continue and can only continue if the institution has the same commitment. Therefore I'm not worried the reform process to improve performance and management will continue because you all are part of it," she told the officials.

She also reminded the officials to have integrity in performing their jobs. "Sincerity and commitment can be seen. Integrity isn't. It's one of the rare things in Indonesia.

People who have integrity are not so many. I want people at the Finance Ministry to be known as having integrity," she said.

She also said the state wealth office should be a reform icon at the ministry, along with the tax office, the customs and excise office and the treasury office.

Coordinating Minister for the Economy Hatta Rajasa said the economy would be run prudently like usual despite Mulyani's departure. He refused to name any possible replacement.